ResourceCursorAdapter with a configurable initial default value

DefaultItemCursorAdapter.java

package com.vml.example;

import android.content.Context;
import android.database.Cursor;
import android.support.v4.widget.ResourceCursorAdapter;
import android.view.View;
import android.view.ViewGroup;

/**
 * Ryan Mott - VML, Inc.
 * 2014-12-10
 *
 * Inserts a placeholder item at the top of the adapter unrelated to
 * the cursor. Used to provide a default item on spinner widgets
 * that may represent the initial "unselected" state.
 */
public abstract class DefaultItemCursorAdapter extends ResourceCursorAdapter {
    private boolean mDefaultSelectable = false;
    private Object mDefaultItem = null;
    private long mDefaultItemId = -1;
    private int mRealCount = 0;

    public DefaultItemCursorAdapter(Context context, int layout, Cursor c, int flags) {
        super(context, layout, c, flags);
    }

    public boolean isDefaultSelectable() {
        return mDefaultSelectable;
    }

    final public void setDefaultSelectable(boolean mDefaultSelectable) {
        this.mDefaultSelectable = mDefaultSelectable;
    }

    public long getDefaultItemId() {
        return mDefaultItemId;
    }

    public void setDefaultItemId(long mDefaultItemId) {
        this.mDefaultItemId = mDefaultItemId;
    }

    public Object getDefaultItem() {
        return mDefaultItem;
    }

    public void setDefaultItem(Object mDefaultItem) {
        this.mDefaultItem = mDefaultItem;
    }

    @Override
    public int getCount() {
        mRealCount = super.getCount();
        int count = mRealCount;
        if (mRealCount > 1) count++;
        return count;
    }

    private int fixPosition(int position) {
        if (mRealCount > 1) position--;
        return position;
    }

    @Override
    public Object getItem(int position) {
        position = fixPosition(position);
        if (position < 0) return mDefaultItem;
        return super.getItem(position);
    }

    @Override
    public long getItemId(int position) {
        position = fixPosition(position);
        if (position < 0) return mDefaultItemId;
        return super.getItemId(position);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        position = fixPosition(position);
        if (position < 0) {
            View v;
            if (convertView == null) {
                v = newView(mContext, mCursor, parent);
            } else {
                v = convertView;
            }
            bindDefaultView(v, mContext, mDefaultItemId, mDefaultItem);
            return v;
        }
        return super.getView(position, convertView, parent);
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {
        position = fixPosition(position);
        if (position < 0) {
            View v;
            if (convertView == null) {
                v = newDropDownView(mContext, mCursor, parent);
            } else {
                v = convertView;
            }
            bindDefaultView(v, mContext, mDefaultItemId, mDefaultItem);
            return v;
        }
        return super.getDropDownView(position, convertView, parent);
    }

    @Override
    public boolean isEnabled(int position) {
        position = fixPosition(position);
        if (position < 0) return mDefaultSelectable;
        return super.isEnabled(position);
    }

    @Override
    public boolean areAllItemsEnabled() {
        return false;
    }

    public abstract void bindDefaultView(View view, Context context, long id, Object item);
}

SimpleDefaultItemCursorAdapter.java

package com.vml.example;

import android.content.Context;
import android.database.Cursor;
import android.view.View;
import android.widget.TextView;

/**
 * Ryan Mott - VML, Inc.
 * 2014-12-10
 *
 * Inserts a placeholder item at the top of the adapter unrelated to
 * the cursor. Allow the placeholder to reflect it is not selectable.
 * Probably requires the spinner item layout to include `android:duplicateParentState="true"`
 */
public class SimpleDefaultItemCursorAdapter extends DefaultItemCursorAdapter {

    private final String mDefaultText;
    private final String mColumnName;

    public SimpleDefaultItemCursorAdapter(Context context, int layout, Cursor c, int flags, String columnName, String defaultText) {
        super(context, layout, c, flags);
        mDefaultText = defaultText;
        mColumnName = columnName;
    }

    @Override
    public void bindDefaultView(View view, Context context, long id, Object item) {
        ((TextView) view.findViewById(android.R.id.text1)).setText(mDefaultText);
        view.setEnabled(isDefaultSelectable());
    }

    @Override
    public void bindView(View view, Context context, Cursor cursor) {
        ((TextView) view.findViewById(android.R.id.text1)).setText(cursor.getString(cursor.getColumnIndex(mColumnName)));
        view.setEnabled(true);
    }
}